CN111720359A

CN111720359A - Vertical stainless steel multistage centrifugal pump

Info

Publication number: CN111720359A
Application number: CN202010770200.0A
Authority: CN
Inventors: 陆钦臣
Original assignee: Jiangsu Sina Pump Technology Co ltd
Current assignee: Jiangsu Sina Pump Technology Co ltd
Priority date: 2020-08-04
Filing date: 2020-08-04
Publication date: 2020-09-29

Abstract

The invention discloses a vertical stainless steel multistage centrifugal pump, which relates to the technical field of centrifugal pumps and comprises a supporting body, wherein a positive guide vane and a main shaft are arranged inside the supporting body, an impeller is sleeved on the outer surface of one end of the main shaft, a connector is fixedly connected to one end of the main shaft, a connecting groove is formed in the connector, which is far away from the main shaft, an installing head is sleeved on the outer surface of one end of the connector, which is far away from the main shaft, a cavity is formed in the installing head, a threaded rod is arranged in the cavity, two connecting rods are in threaded connection with the outer surface of the threaded rod, clamping blocks are fixedly connected to the far sides of the two connecting rods, through grooves are formed in the upper. According to the invention, the mounting head is sleeved on the main shaft, then the connecting rod can move by rotating the threaded rod, and the connecting rod moves to drive the clamping block to penetrate through the through groove and enter the clamping groove, so that the impeller is fixed quickly and conveniently.

Description

Vertical stainless steel multistage centrifugal pump

Technical Field

The invention relates to the technical field of centrifugal pumps, in particular to a vertical stainless steel multistage centrifugal pump.

Background

The centrifugal pump works by utilizing the centrifugal motion of water generated by the rotation of an impeller, before the water pump is started, a pump shell and a water suction pipe are filled with water, then a motor is started, a pump shaft drives the impeller and the water to rotate at a high speed, the water generates the centrifugal motion and is thrown to the outer edge of the impeller and flows into a water pressing pipeline of the water pump through a flow channel of a volute-shaped pump shell,

however, in the prior art, the impeller of the neutral stainless steel multistage centrifugal pump is mostly installed on the main shaft through bolts, and during installation, the bolts need to be continuously screwed down by means of tools, so that the installation is time-consuming and labor-consuming.

Disclosure of Invention

Technical problem to be solved

The invention provides a vertical stainless steel multistage centrifugal pump, which aims to solve the problems that most of impellers of the vertical stainless steel multistage centrifugal pump in the prior art are arranged on a main shaft through bolts, and the bolts need to be continuously screwed down by means of tools during installation, so that the installation is time-consuming and labor-consuming.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme:

the utility model provides a vertical stainless steel multistage centrifugal pump, includes the supporter, the inside of supporter is provided with positive stator and main shaft, the impeller has been cup jointed to the one end surface of main shaft, the one end fixedly connected with connector of main shaft, the connector is kept away from the inside of main shaft and is seted up the spread groove, the one end surface that the main shaft was kept away from to the connector has been cup jointed the installation head, the cavity has been seted up to the inside of installation head, the inside of cavity is provided with the threaded rod, the surface threaded connection of threaded rod has two connecting rods, two the equal fixedly connected with fixture block in one side of keeping away from mutually of connecting rod, logical groove has all been seted up to the upper surface and the lower surface of connector, the draw-.

Furthermore, the clamping groove is communicated with the through groove, the cross sectional areas of the clamping block, the through groove and the clamping groove are all set to be circular, and the through groove is matched with the clamping block.

Furthermore, the bottom end of the threaded rod is rotatably connected with the inner bottom wall of the mounting head through a bearing, the top end of the threaded rod penetrates through the mounting head and is fixedly connected with a rotating knob, the rotating knob is located above the mounting head, and the upper end of the threaded rod is rotatably connected with the top end of the mounting head through a bearing.

Furthermore, the front surface of the connecting rod is in contact with the inner wall of the front surface of the connector, and the back surface of the connecting rod is in contact with the inner wall of the back surface of the connector.

Further, fixture block fixed connection keeps away from the one end of threaded rod at the connecting rod, leave the clearance between the connecting rod and the one end inner wall that the main shaft was kept away from to the installation head.

Furthermore, a threaded hole matched with the threaded rod is formed in the connecting rod.

(III) advantageous effects

The invention provides a vertical stainless steel multistage centrifugal pump, which has the following beneficial effects:

(1) this vertical stainless steel multistage centrifugal pump through cup jointing the installation head on the main shaft, then rotates the threaded rod and can make the connecting rod remove, can drive the fixture block through the connecting rod removal and pass logical groove entering draw-in groove, can make the impeller fixed, and is swift convenient, and the installation is firm, has satisfied people's demand.

(2) This vertical stainless steel multistage centrifugal pump through the setting of turning round, has made things convenient for the user to the rotation of threaded rod, because the installation head supports the impeller for the fixed of impeller is more firm.

Drawings

FIG. 1 is a schematic view of the support structure of the vertical stainless steel multistage centrifugal pump of the present invention;

fig. 2 is an enlarged schematic view of the structure at a in fig. 1 of the vertical stainless steel multistage centrifugal pump of the present invention.

In the figure: 1. a support body; 2. a positive guide vane; 3. a main shaft; 4. an impeller; 5. a connector; 6. a mounting head; 7. a threaded rod; 8. a connecting rod; 9. a clamping block; 10. a card slot; 11. and (6) turning.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

In the present invention, unless otherwise expressly specified or limited, the terms "disposed," "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected or detachably connected; may be a mechanical connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1-2, the present invention provides a technical solution:

a vertical stainless steel multistage centrifugal pump comprises a support body 1, a positive guide vane 2 and a main shaft 3 are arranged inside the support body 1, an impeller 4 is sleeved on the outer surface of one end of the main shaft 3, a connector 5 is fixedly connected to one end of the main shaft 3, a connecting groove is formed in the connector 5 far away from the main shaft 3, an installing head 6 is sleeved on the outer surface of one end of the connector 5 far away from the main shaft 3, a cavity is formed in the installing head 6, a threaded rod 7 is arranged inside the cavity, the bottom end of the threaded rod 7 is rotatably connected with the inner bottom wall of the installing head 6 through a bearing, the top end of the threaded rod 7 penetrates through the installing head 6 and is fixedly connected with a rotating knob 11, the rotating knob 11 is positioned above the installing head 6, the upper end of the threaded rod 7 is rotatably connected with the top end of the installing head 6 through a bearing, the connecting rod 8 is provided with a threaded hole matched with the threaded rod 7, the front surface of the connecting rod 8 is contacted with the front inner wall of the connecting head 5, the back surface of the connecting rod 8 is contacted with the back inner wall of the connecting head 5, a gap is reserved between the connecting rod 8 and the inner wall of one end of the mounting head 6 far away from the main shaft 3, one sides of the two connecting rods 8 far away from each other are fixedly connected with a clamping block 9, the clamping block 9 is fixedly connected with one end of the connecting rod 8 far away from the threaded rod 7, the upper surface and the lower surface of the connecting head 5 are provided with through grooves, the inner walls of two sides of the impeller 4 are provided with clamping grooves 10, the clamping grooves 10 are matched with the clamping blocks 9, the cross-sectional areas of the through grooves and the clamping grooves 10 are circular, the through grooves are matched with the clamping blocks 9, when the impeller 4, then the mounting head 6 is inserted on the main shaft 3 and is abutted against the impeller 4, the mounting head 6 is inserted into the main shaft 3 by the steps of firstly symmetrically mounting a cavity formed by the head 6 on the connecting head 5, simultaneously aligning the connecting rod 8 and the fixture block 9 with a connecting groove formed by the connecting head 5, then sleeving the mounting head 6 on the connecting head 5, enabling the upper surface, the lower surface, the front surface and the back surface of the connecting head 5 to be respectively contacted with the inner top wall, the inner bottom wall, the front inner wall and the back inner wall of the mounting head 6, and leaving a gap between the connecting head 5 and the threaded rod 7, at the moment, the connecting rod 8 and the fixture block 9 are positioned in the connecting groove formed by the connecting head 5, the position of the fixture block 9 corresponds to the positions of the through groove and the clamping groove 10, then, by the rotating screw rod 7 of, the connecting rod 8 can drive the fixture block 9 to move in the moving process until the rotating knob 11 cannot rotate, the fixture block 9 penetrates through the through groove and enters the clamping groove 10, at the moment, the impeller 4 is installed, the installation head 6 is fixed on the spindle 3, the installation head 6 abuts against the impeller 4, and the impeller 4 is fixed more firmly.

The working principle of the vertical stainless steel multistage centrifugal pump is that when the impeller 4 needs to be installed, the impeller 4 is firstly sleeved on the main shaft 3, the clamping groove 10 formed in the impeller 4 corresponds to and is communicated with the through groove formed in the connector 5, then the installing head 6 is inserted on the main shaft 3 and is abutted against the impeller 4, the installing head 6 is inserted into the main shaft 3 in the process that the connector 5 is symmetrical to a cavity formed in the installing head 6, meanwhile, the connecting rod 8 and the clamping block 9 are aligned to the connecting groove formed in the connector 5, then the installing head 6 is sleeved on the connector 5, the upper surface, the lower surface, the front surface and the back surface of the connector 5 are respectively contacted with the inner top wall, the inner bottom wall, the front surface inner wall and the back surface of the installing head 6, a gap is reserved between the connector 5 and the threaded rod 7, at the moment, the connecting rod 8 and the clamping block 9 are positioned, then through turning round 11 corotation threaded rod 7, threaded rod 7 rotates the screw hole that the in-process was seted up through connecting rod 8 and drives connecting rod 8 and remove to the direction that is close to draw-in groove 10, connecting rod 8 can drive fixture block 9 and remove at the removal in-process, when turning round 11 can not rotate, show that fixture block 9 passes logical groove and gets into in the draw-in groove 10, at this moment, the installation of impeller 4 is accomplished, make installation head 6 fix on main shaft 3 simultaneously, and installation head 6 supports impeller 4, make impeller 4's fixed more firm.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. A vertical stainless steel multistage centrifugal pump comprises a support body (1) and is characterized in that a positive guide vane (2) and a main shaft (3) are arranged inside the support body (1), an impeller (4) is sleeved on the outer surface of one end of the main shaft (3), a connector (5) is fixedly connected to one end of the main shaft (3), a connecting groove is formed in the connector (5) far away from the main shaft (3), an installing head (6) is sleeved on the outer surface of one end of the connector (5) far away from the main shaft (3), a cavity is formed in the installing head (6), a threaded rod (7) is arranged inside the cavity, two connecting rods (8) are in threaded connection with the outer surface of the threaded rod (7), a clamping block (9) is fixedly connected to one side, far away from each other, of the two connecting rods (8), and a through groove is formed in the upper surface and, the impeller is characterized in that clamping grooves (10) are formed in the inner walls of the two sides of the impeller (4), and the clamping grooves (10) are matched with the clamping blocks (9).

2. The vertical stainless steel multistage centrifugal pump according to claim 1,

the clamping groove (10) is communicated with the through groove, the cross sections of the clamping block (9), the through groove and the clamping groove (10) are all circular, and the through groove is matched with the clamping block (9).

3. The vertical stainless steel multistage centrifugal pump according to claim 1,

the bottom of threaded rod (7) is passed through the bearing and is connected with the interior diapire rotation of installation head (6), installation head (6) and fixedly connected with turn-button (11) are run through on the top of threaded rod (7), turn-button (11) are located the top of installation head (6), the upper end of threaded rod (7) is passed through the bearing and is connected with the top rotation of installation head (6).

4. The vertical stainless steel multistage centrifugal pump according to claim 1,

the front of connecting rod (8) and the front inner wall contact of connector (5), the back of connecting rod (8) and the back inner wall contact of connector (5).

5. The vertical stainless steel multistage centrifugal pump according to claim 1,

fixture block (9) fixed connection keeps away from the one end of threaded rod (7) in connecting rod (8), leave the clearance between connecting rod (8) and the one end inner wall of installing head (6) keep away from main shaft (3).

6. The vertical stainless steel multistage centrifugal pump according to claim 1,

and a threaded hole matched with the threaded rod (7) is formed in the connecting rod (8).